Fix wall distance

Author: johnBuffer

include/common/number_generator.hpp

@@ -58,37 +58,42 @@ template<typename T>
 class RNG
 {
 private:
-	static RealNumberGenerator<T> gen;
+	static RealNumberGenerator<T>* gen;
 
 public:
+    static void initialize()
+    {
+        gen = new RealNumberGenerator<T>();
+    }
+
 	static T get()
 	{
-		return gen.get();
+		return gen->get();
 	}
 
 	static float getUnder(T max)
 	{
-		return gen.getUnder(max);
+		return gen->getUnder(max);
 	}
 
 	static uint64_t getUintUnder(uint64_t max)
 	{
-		return static_cast<uint64_t>(gen.getUnder(static_cast<float>(max) + 1.0f));
+		return static_cast<uint64_t>(gen->getUnder(static_cast<float>(max) + 1.0f));
 	}
 
 	static float getRange(T min, T max)
 	{
-		return gen.getRange(min, max);
+		return gen->getRange(min, max);
 	}
 
 	static float getRange(T width)
 	{
-		return gen.getRange(width);
+		return gen->getRange(width);
 	}
 
 	static float getFullRange(T width)
 	{
-		return gen.getRange(static_cast<T>(2.0f) * width);
+		return gen->getRange(static_cast<T>(2.0f) * width);
 	}
 
 	static bool proba(float threshold)
@@ -100,7 +105,7 @@ class RNG
 using RNGf = RNG<float>;
 
 template<typename T>
-RealNumberGenerator<T> RNG<T>::gen = RealNumberGenerator<T>();
+RealNumberGenerator<T>* RNG<T>::gen = nullptr;
 
 
 template<typename T>

include/editor/editor_scene.hpp

@@ -118,7 +118,7 @@ struct EditorScene : public GUI::Scene
 
     void updateRenderOptions() const
     {
-        renderer->simulation.renderer.render_ants = display_controls->draw_ants;
+        renderer->simulation.renderer.render_ants        = display_controls->draw_ants;
         renderer->simulation.world.renderer.draw_markers = display_controls->draw_markers;
         renderer->simulation.world.renderer.draw_density = display_controls->draw_density;
     }

include/render/async_va_renderer.hpp

@@ -13,6 +13,7 @@ struct AsyncRenderer
 	bool run;
 	bool swap_ok;
 
+    explicit
 	AsyncRenderer(DoubleObject<sf::VertexArray>& target)
 		: vertex_array(target)
 		, run(true)

include/render/world_renderer.hpp

@@ -43,7 +43,7 @@ struct WorldRenderer : public AsyncRenderer
 				va[4 * i + 0].position = position;
 				va[4 * i + 1].position = position + sf::Vector2f(cell_size_eps, 0.0f);
 				va[4 * i + 2].position = position + sf::Vector2f(cell_size_eps, cell_size_eps);
-				va[4 * i + 3].position = position + sf::Vector2f(0.0f, cell_size_eps);
+				va[4 * i + 3].position = position + sf::Vector2f(0.0f         , cell_size_eps);
 				++i;
 			}
 		}
@@ -93,6 +93,7 @@ struct WorldRenderer : public AsyncRenderer
 				va[4 * i + 1].color = color;
 				va[4 * i + 2].color = color;
 				va[4 * i + 3].color = color;
+
 				++i;
 			}
 		}

include/simulation/ant/ant.hpp

@@ -13,15 +13,15 @@
 
 struct SamplingResult
 {
-	float max_intensity = 0.0f;
+	float max_intensity         = 0.0f;
 	// To objective stuff
-	sf::Vector2f max_direction;
-	WorldCell* max_cell = nullptr;
-	bool found_permanent = false;
-	bool found_fight = false;
+	sf::Vector2f max_direction  = {0.0f, 0.0f};
+	WorldCell* max_cell         = nullptr;
+	bool found_permanent        = false;
+	bool found_fight            = false;
 	// Repellent stuff
-	float max_repellent = 0.0f;
-	WorldCell* repellent_cell = nullptr;
+	float max_repellent         = 0.0f;
+	WorldCell* repellent_cell   = nullptr;
 };
 
 

include/simulation/ant/worker.hpp

@@ -19,8 +19,9 @@ struct WorkerUpdater
 		// Sample the world
 		for (uint32_t i(sample_count); i--;) {
 			// Get random point in range
-			const float sample_angle     = current_angle + RNGf::getRange(sample_angle_range);
-			const float distance         = RNGf::getUnder(ant.marker_detection_max_dist);
+            const float delta_angle      = RNGf::getRange(sample_angle_range);
+			const float sample_angle     = current_angle + delta_angle;
+			const float distance         = RNGf::getUnder(Ant::marker_detection_max_dist);
 			const sf::Vector2f to_marker = { cos(sample_angle), sin(sample_angle) };
 			auto* cell                   = world.map.getSafe(ant.position + distance * to_marker);
 			const HitPoint hit_result    = world.map.getFirstHit(ant.position, to_marker, distance);
@@ -51,7 +52,8 @@ struct WorkerUpdater
 				result.repellent_cell = cell;
 			}
 			// Check for the most intense marker
-			const float marker_intensity = to<float>(cell->getIntensity(marker_phase, ant.col_id) * std::pow(cell->wall_dist, 2.0));
+            const float wall_rep = cell->wall_dist * cell->wall_dist;
+			const auto marker_intensity = to<float>(cell->getIntensity(marker_phase, ant.col_id)) * wall_rep;
 			if (marker_intensity > result.max_intensity) {
 				result.max_intensity = marker_intensity;
 				result.max_direction = to_marker;
@@ -62,7 +64,8 @@ struct WorkerUpdater
 				break;
 			}
 		}
-		if (result.found_fight) {
+
+        if (result.found_fight) {
 			ant.direction = getAngle(result.max_direction);
 			ant.fight_mode = FightMode::ToFight;
 			return;
@@ -80,7 +83,8 @@ struct WorkerUpdater
 		if (result.repellent_cell && ant.phase == Mode::ToHome) {
 			result.repellent_cell->getRepellent(ant.col_id) *= 0.95f;
 		}
-		// Update direction
+
+        // Update direction
 		if (result.max_intensity) {
 			// Slowly degrade the track to accelerate its dissipation
 			if (RNGf::proba(0.2f) && ant.phase == Mode::ToFood) {

include/simulation/colony/colony.hpp

@@ -42,7 +42,7 @@ struct Colony
     {
         id = colony_id;
         base.food = 0.0f;
-        uint32_t ants_count = 2000;
+        uint32_t ants_count = 1000;
         for (uint32_t i(ants_count); i--;) {
             createWorker();
         }
@@ -117,7 +117,7 @@ struct Colony
 	{
 		// Update stats
 		if (pop_diff_update.updateAutoReset(dt)) {
- 			pop_diff.addValue(to<float>(ants.size()));
+ 			pop_diff.addValue(to<int64_t>(ants.size()));
 		}
 		createNewAnts(dt);
 		// Update ants and check if collision with colony

include/simulation/config.hpp

@@ -66,7 +66,7 @@ struct DefaultConf
                         DefaultConf<T>::USE_FULLSCREEN = std::atoi(line_c);
                         break;
                     case 3:
-                        DefaultConf<T>::GUI_SCALE = std::atof(line_c);
+                        DefaultConf<T>::GUI_SCALE = static_cast<float>(std::atof(line_c));
                         break;
                     case 4:
                         DefaultConf<T>::ANTS_COUNT = std::atoi(line_c);

include/simulation/simulation.hpp

@@ -28,6 +28,7 @@ struct Simulation
 		, renderer()
         , distance_field_builder(world.map)
 	{
+        distance_field_builder.requestUpdate();
 	}
 
 	void loadMap(const std::string& map_filename)

include/simulation/world/world.hpp

@@ -21,6 +21,7 @@ struct World
 		, size(to<float>(width), to<float>(height))
 		, renderer(map, va_map)
 	{
+        // Create walls around the map
 		for (int32_t x(0); x < map.width; x++) {
 			for (int32_t y(0); y < map.height; y++) {
 				if (x == 0 || x == map.width - 1 || y == 0 || y == map.height - 1) {

include/simulation/world/world_grid.hpp

@@ -13,8 +13,8 @@ constexpr float min_intensity = 0.1f;
 struct AntRef
 {
 	bool     active = false;
-	uint8_t  col_id;
-	uint16_t ant_id;
+	uint8_t  col_id = 0;
+	uint16_t ant_id = 0;
 };
 
 
@@ -24,14 +24,14 @@ struct ColonyCell
 	float intensity[3];
 	// Is the marker permanent ?
 	bool permanent = false;
-	// Repellent instensity
+	// Repellent intensity
 	float repellent;
 	// Current ant
 	int16_t current_ant = -1;
     bool fighting;
 
 	ColonyCell()
-		: intensity{ min_intensity, min_intensity, min_intensity }
+		: intensity{0.0f, 0.0f, 0.0f}
 		, repellent(0.0f)
         , fighting(false)
 	{}
@@ -40,7 +40,7 @@ struct ColonyCell
 	{
 		// Reset current ant
 		current_ant = -1;
-        fighting = false;
+        fighting    = false;
 		// Update toFood and toHome
 		intensity[0] -= permanent ? 0.0f : dt;
 		intensity[1] -= dt;
@@ -130,11 +130,13 @@ struct WorldCell
 		return markers[colony_id].repellent;
 	}
 
+	[[nodiscard]]
 	float getIntensity(Mode mode, uint8_t colony_id) const
 	{
 		return std::max(min_intensity, markers[colony_id].intensity[to<uint32_t>(mode)]);
 	}
 
+	[[nodiscard]]
 	bool isPermanent(uint8_t colony_id) const
 	{
 		return markers[colony_id].permanent;
@@ -213,7 +215,7 @@ struct WorldGrid : public Grid<WorldCell>
 	void remove(sf::Vector2f pos, Mode type, uint8_t colony_id)
 	{
 		WorldCell& cell = get(pos);
-		const uint32_t mode_index = to<uint32_t>(type);
+		const auto mode_index = to<uint32_t>(type);
 		cell.markers[colony_id].intensity[mode_index] = 0.0f;
 	}
 

src/main.cpp

@@ -15,6 +15,9 @@ int main()
     } else {
         std::cout << "Configuration file couldn't be found." << std::endl;
     }
+
+    RNGf::initialize();
+
 	sf::ContextSettings settings;
 	settings.antialiasingLevel = 4;
     int32_t window_style = Conf::USE_FULLSCREEN ? sf::Style::Fullscreen : sf::Style::Default;